<!-- disable eslint -->
<template>
    <div style="position: relative"
        >
        <div class="verify-img-out">
            <div class="verify-img-panel" :style="{'width': setSize.imgWidth,
                                                   'height': setSize.imgHeight,
                                                   'background-size' : setSize.imgWidth + ' '+ setSize.imgHeight,
                                                   'margin-bottom': vSpace + 'px'}"
                                                    >
                <div class="verify-refresh" style="z-index:3" @click="refresh" v-show="showRefresh">
                    <i class="iconfont icon-refresh"></i>
                </div>
                <img :src="'data:image/png;base64,'+pointBackImgBase"
                ref="canvas"
                alt=""  style="width:100%;height:100%;display:block"
                @click="bindingClick?canvasClick($event):undefined">

                <div v-for="(tempPoint, index) in tempPoints" :key="index" class="point-area"
                     :style="{
                        'background-color':'#1abd6c',
                        color:'#fff',
                        'z-index':9999,
                        width:'20px',
                        height:'20px',
                        'text-align':'center',
                        'line-height':'20px',
                        'border-radius': '50%',
                        position:'absolute',
                        top:parseInt(tempPoint.y-10) + 'px',
                        left:parseInt(tempPoint.x-10) + 'px'
                     }">
                    {{index + 1}}
                </div>
            </div>
        </div>
        <!-- 'height': this.barSize.height, -->
        <div class="verify-bar-area"
             :style="{'width': setSize.imgWidth,
                      'color': this.barAreaColor,
                      'border-color': this.barAreaBorderColor,
                      'line-height':this.barSize.height}">
            <span class="verify-msg">{{text}}</span>
        </div>
    </div>
</template>
<script type="text/babel">
/**
     * VerifyPoints
     * @description 点选
     * */
import {
  computed, getCurrentInstance, nextTick, onMounted, reactive, ref, toRefs, watch, watchEffect,
} from 'vue';

import { reqCheck, reqGet } from '../api/index';
import { aesEncrypt } from '../utils/ase';
import {
  _code_chars, _code_color1, _code_color2, resetSize,
} from '../utils/util';

export default {
  name: 'VerifyPoints',
  props: {
    // 弹出式pop，固定fixed
    mode: {
      type: String,
      default: 'fixed',
    },
    captchaType: {
      type: String,
    },
    // 间隔
    vSpace: {
      type: Number,
      default: 5,
    },
    imgSize: {
      type: Object,
      default() {
        return {
          width: '310px',
          height: '155px',
        };
      },
    },
    barSize: {
      type: Object,
      default() {
        return {
          width: '310px',
          height: '40px',
        };
      },
    },
  },
  setup(props, context) {
    const {
      mode, captchaType, vSpace, imgSize, barSize,
    } = toRefs(props);
    const { proxy } = getCurrentInstance();
    const secretKey = ref(''); // 后端返回的ase加密秘钥
    const checkNum = ref(3); // 默认需要点击的字数
    const fontPos = reactive([]); // 选中的坐标信息
    const checkPosArr = reactive([]); // 用户点击的坐标
    const num = ref(1); // 点击的记数
    const pointBackImgBase = ref(''); // 后端获取到的背景图片
    const poinTextList = reactive([]); // 后端返回的点击字体顺序
    const backToken = ref(''); // 后端返回的token值
    const setSize = reactive({
      imgHeight: 0,
      imgWidth: 0,
      barHeight: 0,
      barWidth: 0,
    });
    const tempPoints = reactive([]);
    const text = ref('');
    const barAreaColor = ref(undefined);
    const barAreaBorderColor = ref(undefined);
    const showRefresh = ref(true);
    const bindingClick = ref(true);

    const init = () => {
      // 加载页面
      fontPos.splice(0, fontPos.length);
      checkPosArr.splice(0, checkPosArr.length);
      num.value = 1;
      getPictrue();
      nextTick(() => {
        const {
          imgHeight, imgWidth, barHeight, barWidth,
        } = resetSize(proxy);
        setSize.imgHeight = imgHeight;
        setSize.imgWidth = imgWidth;
        setSize.barHeight = barHeight;
        setSize.barWidth = barWidth;
        proxy.$parent.$emit('ready', proxy);
      });
    };
    onMounted(() => {
      // 禁止拖拽
      init();
      proxy.$el.onselectstart = function () {
        return false;
      };
    });
    const canvas = ref(null);
    const canvasClick = (e) => {
      checkPosArr.push(getMousePos(canvas, e));
      if (num.value == checkNum.value) {
        num.value = createPoint(getMousePos(canvas, e));
        // 按比例转换坐标值
        const arr = pointTransfrom(checkPosArr, setSize);
        checkPosArr.length = 0;
        checkPosArr.push(...arr);
        // 等创建坐标执行完
        setTimeout(() => {
          // var flag = this.comparePos(this.fontPos, this.checkPosArr);
          // 发送后端请求
          const captchaVerification = secretKey.value ? aesEncrypt(`${backToken.value}---${JSON.stringify(checkPosArr)}`, secretKey.value) : `${backToken.value}---${JSON.stringify(checkPosArr)}`;
          const data = {
            captchaType: captchaType.value,
            pointJson: secretKey.value ? aesEncrypt(JSON.stringify(checkPosArr), secretKey.value) : JSON.stringify(checkPosArr),
            token: backToken.value,
          };
          reqCheck(data).then((res) => {
            if (res.repCode == '0000') {
              barAreaColor.value = '#4cae4c';
              barAreaBorderColor.value = '#5cb85c';
              text.value = '验证成功';
              bindingClick.value = false;
              if (mode.value == 'pop') {
                setTimeout(() => {
                  proxy.$parent.clickShow = false;
                  refresh();
                }, 1500);
              }
              proxy.$parent.$emit('success', { captchaVerification });
            } else {
              proxy.$parent.$emit('error', proxy);
              barAreaColor.value = '#d9534f';
              barAreaBorderColor.value = '#d9534f';
              text.value = '验证失败';
              setTimeout(() => {
                refresh();
              }, 700);
            }
          });
        }, 400);
      }
      if (num.value < checkNum.value) {
        num.value = createPoint(getMousePos(canvas, e));
      }
    };
    // 获取坐标
    const getMousePos = function (obj, e) {
      const x = e.offsetX;
      const y = e.offsetY;
      return { x, y };
    };
    // 创建坐标点
    const createPoint = function (pos) {
      tempPoints.push({ ...pos });
      return num.value + 1;
    };
    const refresh = function () {
      tempPoints.splice(0, tempPoints.length);
      barAreaColor.value = '#000';
      barAreaBorderColor.value = '#ddd';
      bindingClick.value = true;
      fontPos.splice(0, fontPos.length);
      checkPosArr.splice(0, checkPosArr.length);
      num.value = 1;
      getPictrue();
      text.value = '验证失败';
      showRefresh.value = true;
    };

    // 请求背景图片和验证图片
    function getPictrue() {
      const data = {
        captchaType: captchaType.value,
      };
      reqGet(data).then((res) => {
        if (res.repCode == '0000') {
          pointBackImgBase.value = res.repData.originalImageBase64;
          backToken.value = res.repData.token;
          secretKey.value = res.repData.secretKey;
          poinTextList.value = res.repData.wordList;
          text.value = `请依次点击【${poinTextList.value.join(',')}】`;
        } else {
          text.value = res.repMsg;
        }
      });
    }
    // 坐标转换函数
    const pointTransfrom = function (pointArr, imgSize) {
      const newPointArr = pointArr.map((p) => {
        const x = Math.round(310 * p.x / parseInt(imgSize.imgWidth));
        const y = Math.round(155 * p.y / parseInt(imgSize.imgHeight));
        return { x, y };
      });
      return newPointArr;
    };
    return {
      secretKey,
      checkNum,
      fontPos,
      checkPosArr,
      num,
      pointBackImgBase,
      poinTextList,
      backToken,
      setSize,
      tempPoints,
      text,
      barAreaColor,
      barAreaBorderColor,
      showRefresh,
      bindingClick,
      init,
      canvas,
      canvasClick,
      getMousePos,
      createPoint,
      refresh,
      getPictrue,
      pointTransfrom,
    };
  },
};
</script>
